Nvidia Drivers Not loading

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OMG, almost 5 months later, I solved it!

The key thing here that fixed it all was initrd.kernelModules = [ "nvidia" "i915" "nvidia_modeset" "nvidia_uvm" "nvidia_drm" ];

I do not know if I should be happy it is fixed, or sad it took, this long.

Working (for me) Config

{ pkgs, config, lib, inputs, ... }: {
  imports = [
    inputs.nixos-hardware.nixosModules.common-gpu-nvidia

    # TODO: why do I get the below error?
    # error: The option `hardware.intelgpu.loadInInitrd' in `/nix/store/4mgg9mrh8g0qj4g3z9zvqhrniig10bsn-source/systems/evo/hardware/gpus.nix' is already declared in `/nix/store/75hvhrfigcnckibdlg877157bpwjmy85-source/common/gpu/intel'.
    # Where is the other coming from?g
    # inputs.nixos-hardware.nixosModules.common-gpu-intel
  ];

  boot = {
    # TODO: confirm this works
    # https://forums.developer.nvidia.com/t/550-54-14-cannot-create-sg-table-for-nvkmskapimemory-spammed-when-launching-chrome-on-wayland/284775/26
    initrd.kernelModules = [ "nvidia" "i915" "nvidia_modeset" "nvidia_uvm" "nvidia_drm" ];
    # extraModulePackages = [ config.boot.kernelPackages.nvidia_x11 ];
    kernelParams = [ "nvidia-drm.fbdev=1" ];
  };

  hardware = {
    # deprecated for graphics.enable
    # opengl = {
    #   enable = true;
    #   # extraPackages = [ pkgs.intel-media-driver pkgs.vaapiVdpau ];
    # };

    graphics = {
      # For 32 bit applications
      # enable32Bit = true;
      enable = true;
    };

    nvidia = {
      # Modesetting is required.
      modesetting.enable = true;

      # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
      # Enable this if you have graphical corruption issues or application crashes after waking
      # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
      # of just the bare essentials.
      powerManagement.enable = true;

      # Fine-grained power management. Turns off GPU when not in use.
      # Experimental and only works on modern Nvidia GPUs (Turing or newer).
      powerManagement.finegrained = false;

      # Use the NVidia open source kernel module (not to be confused with the
      # independent third-party "nouveau" open source driver).
      # Support is limited to the Turing and later architectures. Full list of
      # supported GPUs is at:
      # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
      # Only available from driver 515.43.04+
      # Currently alpha-quality/buggy, so false is currently the recommended setting.
      open = false;

      forceFullCompositionPipeline = true;

      prime = {
        intelBusId = "PCI:0:2:0";
        nvidiaBusId = "PCI:1:0:0";
        offload = {
          enable = true;
          enableOffloadCmd = true;
        };
        # Make the Intel iGP default. The NVIDIA Quadro is for CUDA/NVENC
        # reverseSync.enable = true;
        # sync.enable = true;
      };
      nvidiaSettings = true;

      # Optionally, you may need to select the appropriate driver version for your specific GPU.
      package = config.boot.kernelPackages.nvidiaPackages.beta;
    };
  };

  services.xserver.videoDrivers = [ "nvidia" ];

}
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